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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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AS1124 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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AS1124 Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers |
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1 / 21 page  Akros Silicon, Inc. 6399 San Ignacio Avenue, Suite 250, San Jose, CA 95119 USA 408.746.9000 www.AkrosSilicon.com GENERAL DESCRIPTION The AS1124 is a single-chip, highly integrated CMOS solution for Power over Ethernet (PoE). Applications include Voice over IP (VoIP) Phones, Wireless LAN Access Point, Security and Web Cameras, Analog Telephone Adapters (ATA) and Point of Sales Terminals. The AS1124 provides the functions required for power over Ethernet Powered Device (PD) applications. The AS1124 integrates rectification and protection circuitry, a PD controller, and a DC-DC converter. This high level of integration provides faster ressponse to surge events and limits stray surge current from passing through sensitive circuits, such as the Ethernet PHY device. The device is designed to provide a safe low impedance discharge paths directly back to the earth ground, resulting in superior reliability and circuit protection. AS1124 has been architected and designed to address both EMI emission concerns and surge/over-voltage protection in POE applications. AS1124 implements many design features that minimizes transmission of system common-mode noise on to the UTP while providing high immunity to over-voltage and surge events. By using high-volume standard CMOS technology, Akros enables its customers to implement higher performance PoE devices with low cost and a small footprint. TYPICAL APPLICATIONS Pan, Tilt and Zoom (PTZ), security and Web Cameras Analog Telephone Adapters (ATA) Point of Sale (PoS)Terminals Wireless LAN Access Points Voice over IP (VoIP) phones FEATURES The AS1124 is fully integrated and architected at a system level to provide the following features: Fully supports IEEE® Std. 802.3af-2003 and supports draft IEEE® Std. 802.3at r0.9 power requirements Meets IEC 61000-4-2/3/4/5/6 requirements Meets IEC 60950 over-voltage protection requirements Integrated rectification for superior high voltage protection Integrated DC-DC converter, provides exceptional EMI performance Programmable DC current limit up to 800 mA Supports “two finger” classification for draft IEEE® Std. 802.3at r0.9 higher power PD applications Provides seamless support for local power Over temperature protection Industrial temperature range, -40ºC to +85ºC 5x5 mm, 20 lead QFN Package, RoHS compliant SIMPLIFIED APPLICATION DIAGRAM Application Diagram for a PoE PD (Flyback Converter) AS1124 — 24W Powered Device with Integrated DC-DC Controller |
Número de pieza similar - AS1124 |
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Descripción similar - AS1124 |
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